First batch of N3 notions.

🔰 Grammar/🔰 Particles (2).md

@@ -47,22 +47,32 @@ These two particles are frequently used together. It means "from X to Y".
 > {朝|あさ}に６時==から==７時==まで==電車で{通|かよ}うっています。
 > I commute by train from 6am to 7am.
 
-## だけ
-
-Means "only", "just".
-
-> [!info] Example
-> {一|ひと}つ==だけ==ください。
-> Only one, please.
-
 ### だけで
 
 Means "just by doing". 
 
 > [!info] Example
-> 見る==だけ==で{楽|たの}しいですね。
+> 見る==だけで=={楽|たの}しいですね。
 > Just looking at it is fun, isn't it.
 
+## っけ
+
+<div class="usage">
+<div class="left">
+	<p><span class="box">V</span></p>
+	<p><span class="box">い-Adj <strike>い</strike> かった</span></p>
+	<p><span class="box">な-Adj + だ・だった</span></p>
+	<p><span class="box">N + だ・だった</span></p>
+</div>
+	<p class="right">+ っけ</p>
+</div>
+
+Used when the speaker tries to remember, or confirm an information, that has been forgotten.
+
+> [!info] Example
+> {会議|かいぎ}は今日だった==っけ==。
+> Was the meeting today?
+
 ## Sentence ending
 
 At the end of a sentence, some particles can be added to put emphasis on a meaning.